This master thesis deals with Doubly Fed Induction Generator (DFIG) controller in RSCAD
model. The controller in RSCAD is built and designed according to the available PSCAD model
and differences between two models are highlighted. Also an investigation is made to increase
power in RSCAD by using a scaling transformer; finally scaled models in both models are
verified against each other.
The work starts with a brief introduction of different wind turbine generators and their
specifications, and describing the theory of variable wind turbines and their advantages over the
fixed wind turbines. In this project doubly fed Induction generator (DFIG) wind turbines are
considered and studied, DFIG and different parts of its controller are discussed, and required
equations for DFIG are derived. Real Time Digital Simulator (RTDS) hardware and RSCAD
software, which are used as the simulator tools at this project are introduced for readers and then
a sample DFIG is modeled in RSCAD.
For verification purposes in first part of the project a 5 MW DFIG model with complete
controllers and scaling transformer in PSCAD are used, by sending scaling level to 40 in PSCAD
the model will represent 200 MW. The base model in RSCAD is a single 200 MW DFIG; both
models in PSCAD and RSCAD are connected to an infinite 154 kV network with known R, L
and C values. Different fault cases are applied to both models to compare behavior of models
during transients and also in normal operation. System studies show that current RSCAD model
behavior is completely different from the PSCAD model. The controllers in both models in
RSCAD and PSCAD, with all possible reasons for having different results were investigated and
it was tried to make the RSCAD model similar to the PSCAD model as much as it was possible.
The second task of this work is about adding scaling feature to the model in RSCAD, as in most
cases 800 MW wind farm or even higher power ratings should be implemented in RSCAD for a
typical wind farm project. As the base model in PSCAD is 5 MW to model an 800 MW DFIG in
PSCAD scaling factor of 160 should be used, and for RSCAD model scaling should be 4 as the
RSCAD base model is 200 MW. It was shown that the scaled model in RSCAD would be
unstable after scaling, and the second task at this project was to study the scaling system concept
in both RSCAD and PSCAD, and find any possible differences between the two models.

Skapa referens, olika format (klipp och klistra)

BibTeX @mastersthesis{Shafiei2012,author={Shafiei, Farhad},title={Modelling and verification of doubly fed induction generator (DFIG) using real time digital simulator (RTDS)},abstract={This master thesis deals with Doubly Fed Induction Generator (DFIG) controller in RSCAD
model. The controller in RSCAD is built and designed according to the available PSCAD model
and differences between two models are highlighted. Also an investigation is made to increase
power in RSCAD by using a scaling transformer; finally scaled models in both models are
verified against each other.
The work starts with a brief introduction of different wind turbine generators and their
specifications, and describing the theory of variable wind turbines and their advantages over the
fixed wind turbines. In this project doubly fed Induction generator (DFIG) wind turbines are
considered and studied, DFIG and different parts of its controller are discussed, and required
equations for DFIG are derived. Real Time Digital Simulator (RTDS) hardware and RSCAD
software, which are used as the simulator tools at this project are introduced for readers and then
a sample DFIG is modeled in RSCAD.
For verification purposes in first part of the project a 5 MW DFIG model with complete
controllers and scaling transformer in PSCAD are used, by sending scaling level to 40 in PSCAD
the model will represent 200 MW. The base model in RSCAD is a single 200 MW DFIG; both
models in PSCAD and RSCAD are connected to an infinite 154 kV network with known R, L
and C values. Different fault cases are applied to both models to compare behavior of models
during transients and also in normal operation. System studies show that current RSCAD model
behavior is completely different from the PSCAD model. The controllers in both models in
RSCAD and PSCAD, with all possible reasons for having different results were investigated and
it was tried to make the RSCAD model similar to the PSCAD model as much as it was possible.
The second task of this work is about adding scaling feature to the model in RSCAD, as in most
cases 800 MW wind farm or even higher power ratings should be implemented in RSCAD for a
typical wind farm project. As the base model in PSCAD is 5 MW to model an 800 MW DFIG in
PSCAD scaling factor of 160 should be used, and for RSCAD model scaling should be 4 as the
RSCAD base model is 200 MW. It was shown that the scaled model in RSCAD would be
unstable after scaling, and the second task at this project was to study the scaling system concept
in both RSCAD and PSCAD, and find any possible differences between the two models.},publisher={Institutionen för energi och miljö, Elteknik, Chalmers tekniska högskola},place={Göteborg},year={2012},keywords={Wind turbine, Doubly Fed Induction Generator (DFIG), Rotor side controller, Grid side controller, Phase-locked Loop (PLL), Crowbar logic, Fault sequencer, Speed controller, Scaling transformer, Real Time Digital Simulator (RTDS), RSCAD.},note={121},}

RefWorks RT GenericSR ElectronicID 169777A1 Shafiei, FarhadT1 Modelling and verification of doubly fed induction generator (DFIG) using real time digital simulator (RTDS)YR 2012AB This master thesis deals with Doubly Fed Induction Generator (DFIG) controller in RSCAD
model. The controller in RSCAD is built and designed according to the available PSCAD model
and differences between two models are highlighted. Also an investigation is made to increase
power in RSCAD by using a scaling transformer; finally scaled models in both models are
verified against each other.
The work starts with a brief introduction of different wind turbine generators and their
specifications, and describing the theory of variable wind turbines and their advantages over the
fixed wind turbines. In this project doubly fed Induction generator (DFIG) wind turbines are
considered and studied, DFIG and different parts of its controller are discussed, and required
equations for DFIG are derived. Real Time Digital Simulator (RTDS) hardware and RSCAD
software, which are used as the simulator tools at this project are introduced for readers and then
a sample DFIG is modeled in RSCAD.
For verification purposes in first part of the project a 5 MW DFIG model with complete
controllers and scaling transformer in PSCAD are used, by sending scaling level to 40 in PSCAD
the model will represent 200 MW. The base model in RSCAD is a single 200 MW DFIG; both
models in PSCAD and RSCAD are connected to an infinite 154 kV network with known R, L
and C values. Different fault cases are applied to both models to compare behavior of models
during transients and also in normal operation. System studies show that current RSCAD model
behavior is completely different from the PSCAD model. The controllers in both models in
RSCAD and PSCAD, with all possible reasons for having different results were investigated and
it was tried to make the RSCAD model similar to the PSCAD model as much as it was possible.
The second task of this work is about adding scaling feature to the model in RSCAD, as in most
cases 800 MW wind farm or even higher power ratings should be implemented in RSCAD for a
typical wind farm project. As the base model in PSCAD is 5 MW to model an 800 MW DFIG in
PSCAD scaling factor of 160 should be used, and for RSCAD model scaling should be 4 as the
RSCAD base model is 200 MW. It was shown that the scaled model in RSCAD would be
unstable after scaling, and the second task at this project was to study the scaling system concept
in both RSCAD and PSCAD, and find any possible differences between the two models.PB Institutionen för energi och miljö, Elteknik, Chalmers tekniska högskola,LA engLK http://publications.lib.chalmers.se/records/fulltext/169777/169777.pdfOL 30